• The Control Tower
• Reconfiguration of the airspace - FAB
• Airport Movement System - AMS
• Meteo customer services
• ATS Reporting Office
• Air Traffic Management - ATM

AIS

France :
http://www.sia.aviation-civile.gouv.fr/default_uk.htm

Germany :
http://www.dfs-ais.de/

Netherlands :
http://www.ais-netherlands.nl/

United Kingdom :
http://www.nats-uk.ead-it.com/public/index.php.html

Eurocontrol :
http://www.eurocontrol.int/aim/public/subsite_homepage/homepage.html

Worldwide AIS :
http://www.eurocontrol.int/aim/public/standard_page/web_eur.html

Eurocontrol CFMU Flight Planning Services

Test your IFR flight plan via IFPUV (Structured Editor), view the ATFM Operational Messages via AIM and consult the Route Availability Document via RAD

https://www.public.cfmu.eurocontrol.int/PUBPORTAL/gateway/spec/index.html